Exclude old log files from backup (#3307)

Currently log files are excluded from the backup. Core uses a time or
startup based log rotation mechanism, both append a dot and an
additional; string (`.1`, `.{timestamp}`). There is also a fault
mechanism which creates a log file with the ending `.log.fault`. Exclude
all cases from the backup.

supervisor/backups/backup.py

@@ -58,6 +58,7 @@ MAP_FOLDER_EXCLUDE = {
         "*.db-shm",
         "__pycache__/*",
         "*.log",
+        "*.log.*",
         "OZW_Log.txt",
     ]
 }